What were some barriers to expansion for the Mongol people? What made it easier?

The mongols became an empire from the khan dynasty the mongols land was a vast steppe land filled to the brim with horses which made it easy for the mongols to expand because cavalry back then, especially horseback archers where a supremely good war weapon.

Explanation:

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation:

they are best known for the cliff pueblos found throughout arizona, new mexico, colorado and utah. and for their development of desert farming.

hope i

-lavira: )